Naomi's suggestion is the easiest I can think of. Change one line to the way you want it as your normally would.
Then USE the FRX as a table, look at the result of your change there, and issue a
REPLACE ALL...WITH...FOR... to achieve want you want. Back up your FRX/FRT first. :-)

FWIW, this is essentially what the old GenRepoX did to extend the report writer with directives (i.e., make a temporary
copy of the FRX, programmatically change the temp copy per the directives, and use the temp copy to run the report.
I found this approach useful very recently on something where I could not get report listeners to give me what I wanted.

-mark

==============

>>>>I have a report printing more then 140 lines (in four columns) of array. Each line begins with the '°' or 'X'. I need to format the line with the 'X' in a different way (with a different backcolor to be shown better). Is there a trick to assign this different format to the report without rewriting each line?
>>>>Thanx in advance
>>>
>>>Can you write some condition using Dynamics tab improved Report Writer in SP2? Make sure to set REPORTBEHAVIOR to 90, otherwise it would not work.
>>
>>Surely i did not explain the problem in a correct way: i can write formatting condition using Dynamics tab, but i must write it for 140 times! I ask
>for a trick to write it less.
>
>Well, may be I misunderstood the problem. Anyway, write it for 3 or 4 and then you can examine the frx and try to copy it - that's the quick idea that comes to mind.
>
>I guess there is also a better way to do it.